Hydroxylammonium sulfate

Hydroxylammonium sulfate [NH3OH]2SO4, is the sulfuric acid salt of hydroxylamine. It is primarily used as an easily handled form of hydroxylamine, which is explosive when pure.

Hydroxylammonium sulfate
Names
Other names
Hydroxylamine sulfate
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.030.095
EC Number
  • 233-118-8
PubChem CID
RTECS number
  • NC5425000
UNII
UN number 2865
  • InChI=1S/2H4NO.H2O4S/c2*1-2;1-5(2,3)4/h2*2H,1H3;(H2,1,2,3,4)/q2*+1;/p-2 Y
    Key: VGYYSIDKAKXZEE-UHFFFAOYSA-L Y
  • InChI=1/2H4NO.H2O4S/c2*1-2;1-5(2,3)4/h2*2H,1H3;(H2,1,2,3,4)/q2*+1;/p-2
    Key: VGYYSIDKAKXZEE-NUQVWONBAN
SMILES
  • [O-]S([O-])(=O)=O.O[NH3+].O[NH3+]
Properties
H8N2O6S
Molar mass 164.14 g/mol
Appearance white crystalline to fine product, slightly hygroscopic
Density 1.88 g/cm3
Melting point 120 °C (248 °F; 393 K) decomposes
58.7 g/100 ml (20 °C)
Structure
Monoclinic
Space group
 P21/c
a = 7.932±0.002 Å, b = 7.321±0.002 Å, c = 10.403±0.003 Å
α = 90°, β = 106.93±0.03°, γ = 90°
4
Hazards
GHS labelling:
Warning
H290, H302, H312, H315, H317, H319, H351, H373, H400, H412
P201, P202, P234, P260, P261, P264, P270, P272, P273, P280, P281, P301+P312, P302+P352, P305+P351+P338, P308+P313, P312, P314, P321, P322, P330, P332+P313, P333+P313, P337+P313, P362, P363, P390, P391, P404, P405, P501
NFPA 704 (fire diamond)
3
1
2
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
 Hydroxylammonium nitrate
Hydroxylammonium chloride
Other cations
 Ammonium sulfate
Hydrazinium sulfate
Related compounds
 Hydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references
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